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Modern Switch Template Migration Blues

templates, switch

Didgeridrew January 18, 2026, 11:53pm 2

Deprecation of legacy template entities in 2025.12 Configuration

TLDR: Legacy template entities (alarm_control_panel, binary_sensor, cover, fan, light, lock, sensor, switch, vacuum, weather) are being deprecated in 2025.12. Legacy template entities will no longer work after 2026.6. I wanted to avoid the deprecation, however it’s apparent that it’s not possible due to future plans. Do not use AI to migrate. AI will screw up the yaml. Use the tools provided in this post, if you use AI you are on your own. The Deprecation Please use this thread to ask ques…

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